Street Guardian SG9663DC (DC = Dual Channel)
CPU: Novatek NT96663
CMOS sensor (front camera): Sony Exmor R IMX291 (Starvis)
CMOS sensor (back camera): Sony Exmor IMX323
Lens: 7 elements, metal case holder, glass optics, angle of view (135° diagonal)
Video resolution:
1 camera separately...